168/2014

Maximum : 100 marks

Time : 1 hour and 15 minutes

1. Ceramie cutting tools are made from : ‡
(മ) Tungsten powder (18) Aluminium oxide powder
(¢) Titanium oxide powder (D) Iron carbide powder
2. In a vernier micrometer 0.001" is divided into 10 divisions in vernier scale. The 10 vernier
501816 (1111810125 15 equal to how many thimble divisions for getting 0.0001" accuracy?
(ಗ) 9 divisions (B) 20 divisions
(C) 10 divisions (D) 24 divisions

3. The cutting edge becomes stronger where the cutting tool is provided with :

(A) Zero back rake angle (B) Positive back rake angle

(C) Side rake angle (72) Negative back rake angle
4. The fixtures are :

(ക) Hold and locate the work (B) Control the cutting tools

(ம) Holding the cutting tools (D) Guiding the cutting tools

5. Inaprogressive plug gauge the ‘GO’ and ‘NO GO' ends are placed at :
(ಹಿ) Both the ends
(7) One end only
(8 ‘GO’ at one end and 'NO GO’ end at other end
(0) Middle portion
6. If a cutting 0001 set above the centre line of the work piece, which effect will take place on the
tool?
(५५) Bide rake angle increases (3) Rake angle increases
(0 Clearance angle increases (00) Relief angle decreases

7. For a turning operation, the 1 1s the length of job, 'f is the feed rate and ‘n’ is the r.p.m. of
work. The eutting time for turning is calculated by :

(ಗಿ) 14 - minutes (B) fxt_n minutes
xn x
0 (04 1 8
0 ‏وو سر‎ minutes (7) 75 minutes
xn
A 3

[15.00]